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Comparison Bosch GBG 35-15 Professional 150 mm / 350 W vs Elitech ST 300S 150 mm / 300 W
230 V
LED light

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Bosch GBG 35-15 Professional 150 mm / 350 W
Elitech ST 300S 150 mm / 300 W 230 V LED light
Bosch GBG 35-15 Professional 150 mm / 350 WElitech ST 300S 150 mm / 300 W
230 V
LED light
from $175.00 
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Machinebench grinderbench grinder
Specs
Rotation modules22
Location of rotation modulescoaxiallycoaxially
Work partdiskdisk
Voltage230 V230 V
Motor power350 W300 W
Sharpening
universal
universal
Dry processing
Disc diameter150 mm150 mm
Bore diameter12.7 mm32 mm
Disc thickness20 mm20 mm
Disc speed3000 rpm2850 rpm
General
LED light
Dimensions325x175x200 mm
Weight10 kg8.9 kg
Added to E-Catalogjanuary 2018march 2016

Motor power

Rated power of the electric motor of the machine. The more powerful the engine, the higher the speed and intensity of processing can be, the larger discs can be used with the machine and the better it is suitable for working with hard, stubborn materials. On the other hand, a powerful motor consumes a lot of energy (which may require special connection — see "Power") and significantly affects the dimensions, weight and price of the entire unit. Therefore, manufacturers choose this parameter based on the type (see "Machine") and the desired characteristics of speed, productivity, etc. In fact, this means that engine power is rather a secondary parameter, and when choosing, it makes sense to pay attention to more practical points — disk diameter, rotation / movement speed, etc.

Bore diameter

The bore diameter of the dry cutting discs (see above) used by the machine. In order for the nozzle to be used normally with the machine, it must match it not only in diameter and thickness (see the relevant paragraphs), but also in the size of the mounting hole.

Disc speed

The nominal speed of rotation of the disk for dry processing (see above), provided by the machine; for models with adjustable rotation (see below), the maximum rotation speed.

For the same disc diameter and material, a higher speed provides more intensive processing, and a slower rotation contributes to accuracy and precision. In addition, optimal speeds depend on the composition of the disc and the material being processed; detailed recommendations with specific figures for a particular situation can be found in special sources.

A separate category is grinding machines with disk-shaped working elements: in such units, the actual speed of movement of the disk surface relative to the workpiece depends on how close the contact point is to the centre of the disk.

LED light

The presence of its own illumination in the design of the machine. Usually, such a system takes the form of a lamp attached to the body with a flexible leg. It allows you to brightly illuminate the work area, which is important not only at dusk or darkness, but even in daylight (protective covers and other parts can greatly obscure the working element of the machine).
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